{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,8]],"date-time":"2026-09-08T10:36:02Z","timestamp":1788863762558,"version":"build-2803163510"},"reference-count":49,"publisher":"MDPI AG","issue":"1","license":[{"start":{"date-parts":[[2023,12,21]],"date-time":"2023-12-21T00:00:00Z","timestamp":1703116800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Instituto de las Mujeres, Ministerio de Igualdad de Espa\u00f1a","award":["UPM C2311580017"],"award-info":[{"award-number":["UPM C2311580017"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["JPM"],"abstract":"<jats:p>Pregnant women with absolute contraindications may be advised against physical activity throughout pregnancy. In this context, bed rest elevates the short-term risk of neonatal complications, thereby exacerbating negative long-term effects on childhood development. The aim of the current study was to investigate the impact of various physical activity interventions during bed rest or activity restriction in pregnancy on factors such as birth weight, preterm birth, maternal hypertension, gestational age at delivery, and the incidence of cesarean sections. Following the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines, a systematic review was designed. The protocol was registered in the International Prospective Registry of Systematic Reviews (PROSPERO) (CRD42022370875). Nine studies, with a total sample of 3173 women, from six countries on four continents were included. There were significant differences in the relationship between bed rest status and birth weight (Z = 2.64; p = 0.008) (MD = 142.57, 95% CI = 36.56, 248.58, I2 = 0%, Pheterogeneity = 0.45) favourable to active groups. No significant differences were found in other analyzed outcomes. Pregnant women who experience this problem must maintain a minimum of daily activity to alleviate these physiological complications and the medical field must understand the consequences of physical inactivity during pregnancy.<\/jats:p>","DOI":"10.3390\/jpm14010014","type":"journal-article","created":{"date-parts":[[2023,12,21]],"date-time":"2023-12-21T10:53:52Z","timestamp":1703156032000},"page":"14","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":9,"title":["Impact of Physical Activity Interventions on High-Risk Pregnancies: A Systematic Review and Meta-Analysis"],"prefix":"10.3390","volume":"14","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-9134-2011","authenticated-orcid":false,"given":"Cristina","family":"Silva-Jose","sequence":"first","affiliation":[{"name":"AFIPE Research Group, Faculty of Physical Activity and Sport Sciences-INEF, Universidad Polit\u00e9cnica de Madrid, 28040 Madrid, Spain"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8707-4656","authenticated-orcid":false,"given":"Michelle F.","family":"Mottola","sequence":"additional","affiliation":[{"name":"R. Samuel McLaughlin Foundation-Exercise and Pregnancy Lab, School of Kinesiology, Faculty of Health Sciences, Department of Anatomy & Cell Biology, Schulich School of Medicine & Dentistry, Children\u2019s Health Research Institute, The University of Western Ontario London, London, ON N6A 3K7, Canada"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Montse","family":"Palacio","sequence":"additional","affiliation":[{"name":"Department of Maternofetal Medicine, Hospital Cl\u00ednic (BCNatal-Fetal Medicine Research Center), Universitat de Barcelona, Fundaci\u00f3 de Recerca Cl\u00ednic Barcelona-IDIBAPS, 08036 Barcelona, Spain"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-3906-3669","authenticated-orcid":false,"given":"Miguel","family":"S\u00e1nchez-Pol\u00e1n","sequence":"additional","affiliation":[{"name":"AFIPE Research Group, Faculty of Physical Activity and Sport Sciences-INEF, Universidad Polit\u00e9cnica de Madrid, 28040 Madrid, Spain"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-3386-7036","authenticated-orcid":false,"given":"Dingfeng","family":"Zhang","sequence":"additional","affiliation":[{"name":"AFIPE Research Group, Faculty of Physical Activity and Sport Sciences-INEF, Universidad Polit\u00e9cnica de Madrid, 28040 Madrid, Spain"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-6450-2454","authenticated-orcid":false,"given":"Ignacio","family":"Refoyo","sequence":"additional","affiliation":[{"name":"Sports Department, Faculty of Physical Activity and Sport Sciences-INEF, Universidad Polit\u00e9cnica de Madrid, 28040 Madrid, Spain"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4165-7039","authenticated-orcid":false,"given":"Rub\u00e9n","family":"Barakat","sequence":"additional","affiliation":[{"name":"AFIPE Research Group, Faculty of Physical Activity and Sport Sciences-INEF, Universidad Polit\u00e9cnica de Madrid, 28040 Madrid, Spain"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2023,12,21]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"1451","DOI":"10.1136\/bjsports-2020-102955","article-title":"World Health Organization 2020 guidelines on physical activity and sedentary behaviour","volume":"54","author":"Bull","year":"2020","journal-title":"Br. 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